A recent survey has shown that software defined wide area network (SD-WAN) is the most disruptive of the current crop of disruptive technologies. An August 2019 survey found that SD-WAN disruption is affecting companies of all sizes, although at a greater rate among smaller companies with a revenue size of less than $10 million.
The author of that survey, Avant Communications, has now expanded those findings in a deep dive (PDF) into the SD-WAN market and market expectations. It finds that the primary reasons for moving from existing networking to SD-WAN are pure business motivations: auto failure and redundancy (66.8%), simplified management (61.0%), cost savings over MPLS (57.7%), and improved application QOS (47.7%).
The primary driver for the need to change is the increasing need for high speed and reliable communications over distributed infrastructures and cloud services, and the growth of bandwidth-heavy and latency-sensitive applications. SD-WAN can work with multiple existing network technologies, such as broadband, MPLS, Ethernet, 4G/5G wireless, DSL, private fiber networks, and satellite, and it will choose the best route for data in real-time -- often improving network performance and reducing network costs.
"Mid-size and small enterprises are moving quickly to cloud, with large enterprises consideration rates increasing more each day" said Gary Levy, VP Worldwide Alliances and Channels at Oracle Communications. "As mission critical applications are sourced across cloud environments, enterprises are re-thinking how they are leveraging MPLS. We find that enterprises are reducing expensive point to point MPLS circuits, increasing usage of less expensive broadband internet, and rapidly deploying SD-WAN."
But while the business case for SD-WAN is clear (IDC expects the market to expand at a 30.8% compound annual growth rate -- CAGR -- from 2018 to 2023, reaching $5.25 ..
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